US Patent Issued to General Electric on March 17 for "Blade tip clearance control using material with negative thermal expansion coefficients" (Indian Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,883, issued on March 17, was assigned to General Electric Co. (Evendale, Ohio).

"Blade tip clearance control using material with negative thermal expansion coefficients" was invented by Naveena K.P. (Bengaluru, India), Ravindra Shankar Ganiger (Bengaluru, India), Kishore Budumuru (Bengaluru, India) and Kudum Shinde (Bengaluru, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "Clearance control systems with thermal actuators are disclosed. An example thermally-actuated clearance control system for a gas turbine engine includes a compliant material; a high-conductive material coupled to a first surface of the compliant material, the high-conductiv...